Strange footage of what looks like a flickering orb, said to be shot in London over the Thames estuary, has left UFO enthusiasts baffled.
The video, filmed by a motorist driving in the dark, appears to show a small UFO with flashing lights around the outside.
The person who shot the 53-second video, uploaded it on YouTube, calling himself ‘Space99dude’.
"I took this from my car but had to go because of where I was parked. Seems too bright for a boat and looked like it was above the water", the Sun quoted him as saying on the site.
"It was a very long way off and I was at full 40x zoom hence the shaky footage. I always carry a camcorder in my car as I saw something a few years ago and think more people should be looking and keeping cameras at the ready," he added.
While the footage has sent the UFO community buzzing, others have dismissed the sighting as a prank.
"Why stop filming after 53 secs? That’s the first sign of a hoax. Indoor lights reflected in the window is my guess," posted a viewer called ukloci.
"Sorry dude, but on video, that could be anything," another viewer, called StephenSilvestri, said.